<template>
  <div>
    <A v-model="num" />
    <B v-model:num="num" />
  </div>
</template>

<script>
import A from "./components/A.vue";
import B from "./components/B.vue";

export default {
  name: "App",
  data() {
    return {
      num: 0,
    };
  },
  components: {
    A,
    B,
  },
};
</script>

<style scoped>
</style>
